International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 12 Experimental study of relationship of concrete cube and concrete cylinder using ultrafine slag Alccofine Saurav 1, Ashok Kumar Gupta 2 1 civil engineering department, Jaypee University of information technology, waknaghat, solan H.P 2 Prof. and Head, civil engineering department, Jaypee University of information technology, waknaghat, solan H.P ABSTRACT: This paper presents a comparison between cubical and cylindrical of normal concrete and with partial replacement of cement with ultra fine slag (Alccofine). Ultra fine slag materials are very much important for improving the durability and workability of concrete to sustain a longer life span and producing a greener and quality concrete. Incorporating ultra fine slag as a mineral admixture improves the workability and pump ability of fresh concrete. The ultra fine slag acts as filler thus also reduces permeability. In this paper mechanical development of high concrete (M5) with partial replacement of cement by ultra fine slag (alccofine) is carried out. Comparison is done between cubical and cylindrical of M5 grade concrete using ultra fine slag. Key words: Alccofine, ultra fine slag, durability, segregation. I INTRODUCTION: Creating quality concrete in the present climate does not depend solely on achieving high property. Improving the durability of the concrete to sustain a longer life span and producing a greener concrete are becoming one of the main criteria in obtaining a quality concrete. Compressive of concrete is important because the main properties of concrete such as elastic modulus, tensile are related to this property. Concrete compression also plays a vital role when we focus more on load baring capacity of structures. Compression test is the most common test conducted on the hardened concrete because it is an easy test to perform and most of the desirable characteristic properties of concrete are qualitatively related to its compressive. In this work the effect of ultra fine slag (Alccofine) replacement on the mechanical properties of high concrete is studied. It has been found that use of ultra fine slag not only improves the compressive of concrete but also improves the workability and fluidity of the mix. It also shows segregation resistance and improved reliability and durability of the reinforced concrete structures 214
International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 13 I I MATERIALS: Cement: 43 Grade OPC conforming to IS: 8112:1989 Properties: specific gravity = 3.15 Normal consistency (P) = 26.5% Fineness = 4% Aggregate: sieve analysis of coarse and fine aggregate was performed and their fineness modulus was determined. Zone of the fine aggregates was found out to zone III. Table 1: Sieve analysis of fine aggregate: Sieve analysis of fine Aggregates conforming to IS:383-197 IS sieve size Weight retained(gm) weight conclusion retained retained passing 4.75mm 14.2 14.2 1.42 98.58 As per IS:383-2.36mm 57.4 71.6 7.16 92.84 197 this sand 1.18mm 19.4 181 1.81 98.19 conforms to 6µ 9.8 271.8 2.71 97.29 Zone IV 3 µ 175.6 447.4 44.7 55.3 15 µ 452.8 9.2 9.2 9.8 Less than 15µ 99.5 999.7 99.7 NA Total= 1gm From Table 1 we get fineness modulus (F.M) of fine aggregates = 2.477 Table 2: Sieve analysis of coarse aggregate: IS sieve size Weight retained(gm) weight retained retained passing 8mm 1 4mm 1 2mm 1 12.5mm 1387.3 1387.3 69.36 3.64 1mm 43.9 1817.39 9.87 9.13 6.3mm 182.56 1999.95 1 4.75mm 1999.95 1 214
International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 14 I I I EXPERIMENTAL WORKS For the experimental work mix prepared was of M5 grade concrete. The cubes were cast in steel moulds of 15mm 15mm 15mm (IS 186:1982). The cylinders were also cast in steel moulds of dia 15mm and height 3mm (IS 186:1982). Mix proportions (Kg/m 3 ) for grade M5 has been determines as per IS: 1262-1982 and IS: 456-2.water cement ratio was taken.4 which is less than maximum w/c ratio as per IS 456:2 for moderate exposure condition Table3: Mix proportion (Kg/m 3 ) for grade M5 (w/c=.4) Grade water cement Fine Coarse aggregate aggregate M5 174 436 338 1395 Concrete was prepared under moderate exposure condition and quality control was good. It was poured into cubical and cylindrical moulds and placed on vibrating table to minimize air entrapped which would otherwise affect the compressive. After 24 hrs the moulds were removed and the specimens were kept for curing at room temperature until taken out for testing. Specimens were tested at different ages i.e. 3 days, 7 days and 28 days compressive. The load is applied at a constant rate thus ensuring progressive increase in stress as failure approached. For the cylinders the top surface of the cylinder was kept in contact with the platen of the existing machine (fig1). For evolution of performance of concrete using ultra fine slag (Alccofine) different mixes were produced using partial replacement of cement using Alccofine are proposed. These are subdivided into eight as follows groups 1. Control concrete without alccofine.(c) 2. Control concrete with 3% alccofine(c3) 3. Control concrete with 5% alccofine(c5) 4. Control concrete with 7% alccofine (C7) 5. Control concrete with 1% alccofine (C1) 6. Control concrete with 13% alccofine (C13) 7. Control concrete with 15% alccofine (C15) 8. Control concrete with 18% alccofine (C18) Similarly for cylindrical it is designated as S, S3, S5, S7, S1, S13, S15, and S18 214
International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 15 Fig1: cube kept in CTM before testing (left) cube kept in CTM after testing (right) IV RESULTS AND DISCUSSION: Hardened properties of concrete for both cubical and cylindrical for different s of alccofine is tabulated below Table3: cubical and cylindrical compressive Mix Name Average compressive cube in (MPa) at 3 days 7 days 28 days C 27.1 54 6.46 C3 29.8 59.5 64.5 C5 31.4 64.8 72.4 C7 33.6 66.2 75.6 C1 38.6 86.2 88.6 C13 37.6 85.6 88.8 C15 32.7 8.1 84.7 C18 29.4 78.5 82.6 Mix Name Average compressive cylinder in (MPa) at 3 days 7 days 28days S 18.4 45.6 58.4 S3 21.23 52.35 61.3 S5 25.6 57.3 69.8 S7 3.1 59.64 72.4 S1 34.66 78.7 83.8 S13 34.2 79.3 83.9 S15 29.7 75.2 8.6 S18 26.2 72.5 78.6 214
International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 16 Table4: Relative of specimens Ratio of cylinder to cube Relative s of specimens 3days 7 days 28 days S/C.678.845.965 S3/C3.712.879.897 S5/C5.812.898.96 S1/C1.898.913.94 S13/C13.95.926.946 S15/C15.915.936.956 cube compressive cylindrical compressive 1 5 1 5 cube compressive C C5 C1 C13 C15 C18 C C5 C1 C13 C15 C18 Age in days 7 Age in days 28 1 5 S S5 S1 S13 S15 S18 S S5 S1 S13 S15 S18 age in days 7 cylindrical compressive 1 5 age in days 28 1.2 1 relative s.8.6.4.2 S/C S3/C3 S5/C5 S1/C1 S13/C13 S15/C15 ratio 214
International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-214 17 V CONCLUSIONS Compressive on concrete using different properties of alccofine are evaluated. Compressive between cubical and cylindrical of concrete are compared. From the limited experimental investigations following conclusions can be drawn 1) Hardened properties of concrete with alccofine are enhanced. 2) Optimum alccofine which enhances the hardened properties of cube and cylindrical concrete is 13%. 3) After 1% replacement of alccofine there is very nominal change in the of conventional concrete. 4) Cylindrical of concrete increases after addition of alccofine but always less than its cubical counterpart. REFERENCES 1. M.S. Pawar, A.C.Saoji, performance of self compacting concrete using alccofine, International journal of engineering Research and application, Aug 213 2. A.M Neville, Properties of concrete, 4 th edition (1995), Addition Wesley Lapman Ltd England. Page 269-317,359-45 3. M.S.Shetty, Concrete technology-theory and practice, S Chand publication (25) 4. IS: 456-2 Code of practice for plain and reinforced concrete (third edition). Bureau of Indian standards, New Delhi, India 5. IS: 516-1959 Methods of tests for of Concrete.BIS, New Delhi, India 6. IS: 1199-1959 Methods of sampling and analysis of Concrete.BIS, New Delhi, India 7. IS 383:197 Specification for coarse and fine aggregates from natural sources for concrete (second revision) Jan 27 8. IS 2386(Part 1):1963 Methods of test for aggregates for concrete: Part 1 Particle size and shape Jan 27 9. IS: 431-1988 Methods for Physical Tests for Hydraulic Cement. Bureau of Indian Standards, New Delhi, India. 1. IS: 8112-1989 Standard Code of Practice for 43-Grade Ordinary Portland cement. Bureau of Indian Standards, New Delhi, India. 11. Iliana Rodriguez Viacava, Antonio Aguado dea Cea, Gemma Rodriguez de Sensale, Self Compacting Concrete of medium concrete characteristics Strength. Construction and Building Materials 3(212) p.p. 776-782. 12. Nan, Su; Kung Chung, H; His Wen, C; A simple mix design method for self compacting concrete. Cement and Concrete Research 31(21)p.p. 1799-187 214